Acceleration is the rate at which velocity (speed) is changing. If an object is moving with a constant velocity, then its acceleration is zero, since the velocity never changes. ... So in that one second, the speed increased by 2 mph.
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-200 metre is less 450m because - 200 metre is negative.
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14 +15 the answer is this
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it should be 30 or something I'm pretty sure that's the answer
